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At least 19 recordsLinked to original sources
PubMed1983

Capgras' syndrome.

Capgras' syndrome is the delusional belief in the existence of identical "doubles" of significant people in a patient's life, or of the patient himself or herself, or of both. It occurs in both men and women and in a variety of psychotic states. The author presents a review of 133 cases of Capgras' syndrome in the English-language literature, defining the syndrome in the light of Capgras' original reports as well as later descriptions, reviewing the discussions of both organic and functional causes, and suggesting in the context of a new case report a psychodynamic hypothesis that may provide a more adequate understanding and more effective treatment of the syndrome.

Adolescent↗
PubMed1999

[A zoocentric Capgras syndrome].

Capgras syndrome is a delusional misidentification, a phenomenon where a person believes delusionally that another person (in most cases closely related) has been replaced by a double or impostor of identical appearance. It is usually a symptom of a functional psychosis but sometimes it is also associated with organic cerebral dysfunction. We present a case of a 23-year old women who had the delusional belief that her cat had been replaced by the cat of her former boy-friend. Reviewing the literature we found that such a case is very rare. The association between Capgras syndrome and depersonalisation-derealisation phenomena is also pointed out.

Adult↗
PubMedDate not supplied

What is meant by "misidentification" in delusional misidentification syndromes? Comparison between Capgras' syndromes and "clonal pluralization of a person'.

The semantic structure of Capgras' syndrome (CS) was analyzed within the framework of "the theory of reference" of analytic philosophy to elucidate the concept of misidentification in delusional misidentification syndromes (DMS). The close relationship between the semantic structure of CS and the ordinary use of a proper name, which is not synonymous with the description but has the function of indicating an object rigidly, is shown. CS is redefined from this perspective, and a novel misidentification symptom, which we call "clonal pluralization of a person", is contrasted to CS. Among so-called DMS, there are at least two types of misidentification with different semantic structures.

Capgras Syndrome↗
PubMed1979

Prosopagnosia and the Capgras syndrome.

The Capgras syndrome is an unusual psychiatric disorder which has attracted much attention in recent years because of its striking nature and controversial etiology and pathogenesis. The question of whether some cases of Capgras syndrome are an expression of a perceptual disorder of facial recognition, i.e., prosopagnosia, is addressed in this report. Careful testing for a possible prosopagnosia revealed that in 2 newly identified cases of Capgras syndrome, the deficit was present. A deficit of facial recognition could not be appreciably detected in a group of normal female and schizophrenic controls.

Adult↗
PubMed1987

Postictal Capgras syndrome.

The Capgras syndrome of delusions that familiar persons are being impersonated by identical doubles has occasionally been associated with cerebral disease, often of the nondominant hemisphere. A patient with chronic right cerebral hemisphere dysfunction and complex partial seizures of right temporal origin manifested the Capgras syndrome in the postictal state, and the delusions ceased with optimal seizure control. The delusions could result from postictal disinhibition of dominant hemisphere recognition functions, or from dysfunction of nondominant hemisphere centers involved in perceptual integration.

Adult↗
PubMed1988

Temporal lobe involvement in Capgras syndrome.

A Capgras syndrome case is presented. The clinical profile appeared at the onset of treatment with Praziquantel for neurocysticerosis. A left-temporal cysticercum was shown by means of a CT scan. Delusion, accompanied by some neurological symptoms diminished but did not disappear after treatment. The hypotheses for Capgras syndrome are reviewed and it is concluded that it constitutes a cognitive-dysmnesic phenomenon (feeling of unreality, impossibility to integrate recently acquired information with old memory traces) and, as such, its origin is likely temporal.

Adult↗
PubMed1992

Capgras syndrome in adolescence.

Capgras syndrome, the delusion of substitution, has rarely been reported in adolescents. The etiology is unknown, and intense controversy surrounds the debate over the relative importance of biological versus psychological factors. Presented here are two cases of Capgras syndrome in adolescents and a review of the relevant biological, neuropsychological, and psychodynamic literature. The authors suggest that the psychological processes underlying the Capgras delusion are mediated by neuroanatomical connections between various brain areas and hypothesize that the fundamental lesion in Capgras syndrome may be the patient's inability or failure to acknowledge the authenticity of a person they clearly recognize.

Adolescent↗
PubMed1992

The Capgras syndrome in paranoid schizophrenia.

Capgras syndrome is characterized by a delusion of impostors who are thought to be physically similar but psychologically distinct from the misidentified person. This syndrome is generally thought to be relatively rare. Most of our knowledge about Capgras syndrome derives from single case studies and small series of cases usually from diagnostically heterogeneous groups. In this article, a series of 31 patients suffering from both paranoid schizophrenia and Capgras syndrome is described. Issues pertaining to the phenomenology of Capgras syndrome, the possible relation between Capgras syndrome and other delusional misidentification syndromes, and a neurobiological hypothesis aimed at explaining Capgras syndrome are discussed.

Adult↗
PubMed1994

Homicide in Capgras' syndrome.

A case of Capgras' syndrome associated with homicidal behavior is reported. The psychodynamic implications are discussed. Capgras' syndrome could lie at the base of aggressive and homicidal acts directed towards family members during psychotic breakdown. Capgras' syndrome should always be evaluated in order to prevent violent acts, understand the psychologic characteristics of the patient and undertake the corresponding treatment.

Adult↗
PubMed1986

Capgras syndrome: a literature review and case series.

The authors have presented a description and review of the Capgras Syndrome along with data from a case series of 25 patients with misidentification syndromes (24 Capgras Syndrome, 1 Fregoli Syndrome). From this data, the following conclusions can be drawn: The Capgras Syndrome is not a rare condition, but an uncommon one which is probably frequently overlooked. The misidentification syndrome is not important as a diagnostic entity. It appears in a variety of psychiatric and neurologic conditions. Capgras Syndrome appears to have a possible neurological link in clinicopathological studies; it has been correlated with lesions which produce prosopagnosia. Capgras Syndrome seems to occur more frequently in women, blacks and schizophrenics. Capgras Syndrome had a high (15%) incidence in our adult inpatients diagnosed as having schizophrenia. From this figure we estimate a 0.12% prevalence of Capgras Syndrome in the general population. Capgras Syndrome is often associated with medical illness and when found should signal the alert clinician to investigate for occult organic conditions.

Adult↗
PubMed1987

Brain imaging in a case of Capgras' syndrome.

A patient developed Capgras' syndrome as part of an interictal psychosis of epilepsy; magnetic resonance imaging revealed bilateral subcortical lesions in occipitotemporal and frontal regions. These findings have implications for the postulated association between Capgras' syndrome and neuropsychological deficits, in particular prosopagnosia.

Adult↗
PubMed1990

Capgras' syndrome with organic disorders.

Capgras' syndrome, one form of the delusional misidentification syndromes, is described. Three patients with the syndrome are reported. The first had a right cerebral infarction, the second had nephrotic syndrome secondary to severe pre-eclampsia in the puerperium, and the third had uncontrolled diabetes mellitus with dementia. Evidence is reviewed regarding an organic aetiology for Capgras' syndrome. We conclude that, when the syndrome is present, a thorough search for organic disorder should be made.

Adult↗
PubMed1989

Capgras' syndrome following minor head trauma.

Capgras' syndrome, the delusion of substitution, has been reported in the setting of many different underlying functional and organic conditions. Only two cases of the syndrome following major head trauma have been reported. The authors present the first reported case of Capgras' syndrome following minor head trauma in an elderly woman.

Aged↗
PubMed1994

Three cases of Capgras' syndrome.

Three cases of Capgras' syndrome were identified in one psychiatric hospital within a 1-year period. These are presented and their psychopathology discussed. The traditional assumption that this is a rare syndrome is challenged.

Aged↗
PubMed1990

Capgras syndrome in a patient with migraine.

Capgras syndrome in a patient with migraine is reported. It is difficult to establish whether this association, which has only been reported once before, had aetiological significance or was coincidental. Investigating all cases of Capgras syndrome for organic pathology by MRI is suggested.

Adult↗
PubMed1997

Capgras' syndrome in a patient with vascular dementia: a case report.

Capgras' syndrome is characterized by a subjective certainty that a familiar person has been replaced by an identical double. This syndrome has been observed in psychiatric and neurological diseases, and has been reported in several cases of dementia of the Alzheimer type. Here, we present a patient with vascular dementia in whom Capgras' syndrome developed in the early stages of dementia, and who exhibited violence. This case suggests that Capgras' syndrome can occur in vascular dementia. In older patients with this syndrome, dementia should also be considered in its differential diagnosis. In addition, patients with Capgras' syndrome should be evaluated for violent potential.

Aged↗
PubMed1983

Capgras syndrome in siblings.

The hallmark of the Capgras Syndrome is delusional misidentification of persons, objects or animals. It can occur in organic syndromes and in functional disorders. Hence there are adherents of organic as well as dynamic factors in the genesis of this disorder. The authors report the occurrence of the Capgras Syndrome in a brother and sister and elaborate on the interplay of both genetic and dynamic factors in the etiology.

Adult↗